Diagnostic Procedure

CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select TCM INPUT SIGNALS in DATA MONITOR mode for A/T with CONSULT-II.
3. Read out the value of FLUID TEMP SE.
  
  Fig 1: Checking Automatic Transaxle Fluid Temperature Sensor Input Signal (With CONSULT-II)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Voltage: Cold [20°C (68°F)] -> Hot [80°C (176°F)]
  1. : Approximately 1.5V -> 0.5V
OK or NG
1. OK: GO TO 9.
2. NG: GO TO 2.
DETECT MALFUNCTIONING ITEM
Check the following items:
- Harness for short or open between TCM, ECM and terminal cord assembly (Main harness)
- Ground circuit for ECM
  Refer to DTC P1065: ECM POWER SUPPLY CIRCUIT .
OK or NG
1. OK: GO TO 9.
2. NG: Repair or replace damaged parts.
CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch to ON position.
  (Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
  
  Fig 2: Checking TCM Power Source Step 1
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 4.
2. NG: GO TO 5.
CHECK TCM POWER SOURCE STEP 2.
1. Turn ignition switch to OFF position.
2. Check voltage between TCM terminal 28 and ground.
  
  Fig 3: Checking TCM Power Source Step 2
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 6.
2. NG: GO TO 5.
DETECT MALFUNCTIONING ITEM
Check the following items:
- Harness for short or open between ignition switch and TCM (Main harness)
- Ignition switch and fuse
  Refer to POWER DISTRIBUTION .
OK or NG
1. OK: GO TO 6.
2. NG: Repair or replace damaged parts.
CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal cord assembly F30 terminals 6 and 7 (component side) when A/T is cold.
  
  Fig 4: Checking Automatic Transaxle Fluid Temperature Sensor With Terminal Cord Assembly
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Reinstall any part removed.
OK or NG
1. OK (without CONSULT-II): GO TO 8.
2. NG: GO TO 7.
DETECT MALFUNCTIONING ITEM
1. Remove oil pan.
2. Check the following items:
  - A/T fluid temperature sensor
    - Check resistance between two terminals while changing temperature as shown.
      
      Fig 5: Heating Fluid Temperature Sensor
      Courtesy of NISSAN MOTOR CO., U.S.A.
      
      Fig 6: Automatic Transaxle Fluid Temperature Sensor Resistance Specifications
      Courtesy of NISSAN MOTOR CO., U.S.A.
  - Harness of terminal cord assembly for short or open
OK or NG
1. OK (without CONSULT-II): GO TO 8.
2. NG: Repair or replace damaged parts.
CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up A/T.
  
  Fig 7: Checking A/T Fluid Temperature Sensor Input Signal (Without CONSULT-II)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Voltage: Cold [20°C (68°F)] -> Hot [80°C (176°F)]
  1. : Approximately 1.5V -> 0.5V
3. Turn ignition switch to OFF position.
4. Disconnect TCM harness connector.
5. Check resistance between TCM harness connector terminal 42 and ground. Refer to Wiring Diagram - AT - BA/FTS
  Continuity should exist.
OK or NG
1. OK: GO TO 10.
2. NG: GO TO 9.
DETECT MALFUNCTIONING ITEM
Check the following items:
- Harness for short or open between TCM, ECM and terminal cord assembly (Main harness)
- Ground circuit for ECM
  Refer to POWER DISTRIBUTION .
OK or NG
1. OK: GO TO 10.
2. NG: Repair or replace damaged parts.
CHECK DTC
Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE .

OK or NG
1. OK: INSPECTION END
2. NG: GO TO 11.
CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
1. OK: INSPECTION END
2. NG: Repair or replace damaged parts.